Adding chlorine at a dosage of 0.2 mg/L as Cl2 to. drinking water will increase the corrosion of copper and iron in the system but may not adversely. affect lead. In general, elevating the pH of the water to between 7.0 and 7.8 is beneficial in. counteracting the corrosive effect of chlorinated water.
A macrosystem is a large system within which microsystems are contained. An example of a part of a law firm's macrosystem is the U.S. court system. macrosystem is a large system within which microsystems are contained. An example of a part of a law firm's macrosystem is the U.S. court system.
The language processing system ensures that this never clashes with another name or location in the execution environment. The responsibility for choosing to use this feature within the body of a macro definition is left to the programmer. This method was used in MacLisp, where a function named gensym could be used to generate a new symbol name. Similar functions (usually named gensym as well) exist in many Lisp-like languages, including the widely implemented Common Lisp standard and Elisp. Read-time Uninterned Symbol This is similar to the first solution in that a single name is shared by multiple expansions of the same macro.